layers of epidermis. epithelial cells: Keratinocytes, Melanocyte, Langerhans, Merkel and Basal cells. Poster for medical and educational use. Structure of the humans skin. Vector illustration Layers of epidermis. epithelial cells: Keratinocytes, Melanocyte, Langerhans, Merkel and Basal cells. Poster for medical and educational use. Structure of the humans skin. Vector illustration